97156209840895 has 8 divisors (see below), whose sum is σ = 116634864370320. Its totient is φ = 77693359498560.

The previous prime is 97156209840863. The next prime is 97156209840967. The reversal of 97156209840895 is 59804890265179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97156209840895 - 2⁵ = 97156209840863 is a prime.

It is a super-2 number, since 2×97156209840895² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3951033246 + ... + 3951057835.

It is an arithmetic number, because the mean of its divisors is an integer number (14579358046290).

Almost surely, 2^{97156209840895} is an apocalyptic number.

97156209840895 is a deficient number, since it is larger than the sum of its proper divisors (19478654529425).

97156209840895 is a wasteful number, since it uses less digits than its factorization.

97156209840895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7902093545.

The product of its (nonzero) digits is 391910400, while the sum is 73.

The spelling of 97156209840895 in words is "ninety-seven trillion, one hundred fifty-six billion, two hundred nine million, eight hundred forty thousand, eight hundred ninety-five".